Mutual Exclusivity in the Synthesis of High Crystallinity and High Yield Single-Walled Carbon Nanotubes.

We report the mutually exclusive relationship between carbon nanotube (CNT) yield and crystallinity. Growth conditions were optimized for CNT growth yield and crystallinity through sequential tuning of three input variables: growth enhancer level, growth temperature, and carbon feedstock level. This...

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Detalles Bibliográficos
Publicado en:	Journal of the American Chemical Society Vol. 134; no. 22; pp. 9219 - 9225
Autores principales:	Kimura, Hiroe, Futaba, Don N., Yumura, Motoo, Hata, Kenji
Formato:	Artículo
Publicado:	American Chemical Society 6/6/2012
Materias:	Single walled carbon nanotubes synthesis Crystallization Chemical vapor deposition Process optimization Feedstock
Acceso en línea:	Ver este registro en EBSCOhost

Descripción
Sumario:	We report the mutually exclusive relationship between carbon nanotube (CNT) yield and crystallinity. Growth conditions were optimized for CNT growth yield and crystallinity through sequential tuning of three input variables: growth enhancer level, growth temperature, and carbon feedstock level. This optimization revealed that, regardless of the variety of carbon feedstock and growth enhancer, the optimum conditions for yield and crystallinity differed significantly with yield/crystallinity, preferring lower/higher growth temperatures and higher/lower carbon feedstock levels. This mutual exclusivity stemmed from the inherent limiting mechanisms for each property.